ASTROSAT CZTI

Data Quality Report

Orbit 09293

Creation date: 2024-06-27T15:44:03.619703
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G07_077T03_9000001310_09293cztM0_level2.evt modeM0/AS1G07_077T03_9000001310_09293cztM0_level2_quad_clean.evt
Size (bytes)280,995,84061,248,960
Size268.0 MB 58.4 MB
Events in quadrant A2,261,298380,437
Events in quadrant B1,964,853403,533
Events in quadrant C1,927,138403,579
Events in quadrant D2,071,889374,309

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0205
B0207
C0183
D0216

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147995439
B0130454455
C0128804250
D0141975113

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012754
B012746
C012838
D012848

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4074330.810015%
B4175190.455090%
C4225140.331361%
D4110370.900243%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7611 5219 3 3 0.04% 0.06%
B 7611 5289 0 0 0.00% 0.00%
C 7611 5363 1 1 0.01% 0.02%
D 7610 5213 22 22 0.29% 0.42%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 8 5 319416 3289.21 475 466 97.0
A 5 16 45545 464.88 475 466 97.0
A 12 236 42845 437.04 475 466 97.0
B 4 80 11052 112.36 495 483 94.1
B 0 214 10053 101.74 495 483 94.1
B 12 111 10046 101.67 495 483 94.1
C 10 22 10389 87.69 490 493 112.9
C 14 67 3745 28.82 490 493 112.9
C 13 61 3670 28.15 490 493 112.9
D 12 233 89122 746.95 463 451 118.7
D 12 227 54527 455.53 463 451 118.7
D 2 14 44639 372.23 463 451 118.7

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter